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bcm53xx: add quick fixes for BCM53573

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It adds and uses ILP clock that requires some other work (in progress)
for upstreaming it. Other than that it adds a quick fix for bcma to add
serial flash before trying to read SPROM.

Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
This commit is contained in:
Rafał Miłecki 2016-08-15 12:47:21 +02:00
parent 38750ce739
commit 27b078e83a
1 changed files with 97 additions and 0 deletions
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97
target/linux/bcm53xx/patches-4.4/905-BCM53573-minor-hacks.patch Normal file
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@ -0,0 +1,97 @@
From 6f1c62440eb6846cb8045d7a5480ec7bbe47c96f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Rafa=C5=82=20Mi=C5=82ecki?= <rafal@milecki.pl>
Date: Mon, 15 Aug 2016 10:30:41 +0200
Subject: [PATCH] BCM53573 minor hacks
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit
Signed-off-by: Rafał Miłecki <rafal@milecki.pl>
---
--- a/arch/arm/boot/dts/bcm53573.dtsi
+++ b/arch/arm/boot/dts/bcm53573.dtsi
@@ -44,6 +44,24 @@
};
};
+ ilp: ilp@0 {
+ compatible = "brcm,ns-ilp";
+ reg = <0x18012000 0x1000>;
+ reg-names = "pmu";
+ clocks = <&alp>;
+ #clock-cells = <0>;
+ clock-output-names = "ilp";
+ };
+
+ timer {
+ compatible = "arm,armv7-timer";
+ interrupts = <GIC_PPI 13 0>,
+ <GIC_PPI 14 0>,
+ <GIC_PPI 11 0>,
+ <GIC_PPI 10 0>;
+ clocks = <&ilp>;
+ };
+
clocks {
#address-cells = <1>;
#size-cells = <1>;
--- a/drivers/bcma/main.c
+++ b/drivers/bcma/main.c
@@ -349,14 +349,6 @@ static int bcma_register_devices(struct
}
#endif
-#ifdef CONFIG_BCMA_SFLASH
- if (bus->drv_cc.sflash.present) {
- err = platform_device_register(&bcma_sflash_dev);
- if (err)
- bcma_err(bus, "Error registering serial flash\n");
- }
-#endif
-
#ifdef CONFIG_BCMA_NFLASH
if (bus->drv_cc.nflash.present) {
err = platform_device_register(&bcma_nflash_dev);
@@ -437,6 +429,14 @@ int bcma_bus_register(struct bcma_bus *b
bcma_register_core(bus, core);
}
+#ifdef CONFIG_BCMA_SFLASH
+ if (bus->drv_cc.sflash.present) {
+ err = platform_device_register(&bcma_sflash_dev);
+ if (err)
+ bcma_err(bus, "Error registering serial flash\n");
+ }
+#endif
+
/* Try to get SPROM */
err = bcma_sprom_get(bus);
if (err == -ENOENT) {
--- a/drivers/clocksource/arm_arch_timer.c
+++ b/drivers/clocksource/arm_arch_timer.c
@@ -14,6 +14,7 @@
#include <linux/smp.h>
#include <linux/cpu.h>
#include <linux/cpu_pm.h>
+#include <linux/clk.h>
#include <linux/clockchips.h>
#include <linux/clocksource.h>
#include <linux/interrupt.h>
@@ -376,6 +377,16 @@ arch_timer_detect_rate(void __iomem *cnt
arch_timer_rate = arch_timer_get_cntfrq();
}
+ /* Get clk rate through clk driver if present */
+ if (!arch_timer_rate) {
+ struct clk *clk = of_clk_get(np, 0);
+
+ if (!IS_ERR(clk)) {
+ if (!clk_prepare_enable(clk))
+ arch_timer_rate = clk_get_rate(clk);
+ }
+ }
+
/* Check the timer frequency. */
if (arch_timer_rate == 0)
pr_warn("Architected timer frequency not available\n");